<template>
	<view v-if="goods_info.goods_name" class="goods-detail-box">
		
		<swiper :indicator-dots="true" :autoplay="true" :interval="3000" :duration="1000" :circular="true">
			<swiper-item v-for="(item, i) in goods_info.pics" :key="i">
				<image :src="item.pics_big" @click="preview(i)"></image>
			</swiper-item>
		</swiper>
		
		<view class="goods-info-box">
			<!-- 商品价格 -->
			<view class="goods-price">
				￥{{goods_info.goods_price}}
			</view>
			<!-- 商品信息主体 -->
			<view class="goods-info-body">
				<view class="left-body">
					{{goods_info.goods_name}}
				</view>
				
				<view class="right-body">
					<uni-icons type="star" size="18" color="gray"></uni-icons>
					<text>收藏</text>
				</view>
			</view>
			<!-- 运费 -->
			<view class="goods-yf">
				快递:免运费 
			</view>
		</view>
		
		<rich-text :nodes="goods_info.goods_introduce"></rich-text>
		
		
		<!-- 商品导航组件区域 -->
		<view class="goods_nav">
			<uni-goods-nav :fill="true" :options="options" :button-group="buttonGroup" @click="onClick" @buttonClick="buttonClick" />
		</view>
		
		
	</view>
</template>

<script>
	import { mapState, mapMutations, mapGetters } from 'vuex'
	
	export default {
		computed: {
			...mapState('m_cart', []),
			...mapGetters('m_cart', ['total'])
		},
		
		watch: {
			// total(newVal) {
			// 	const findResult = this.options.find(x => x.text === "购物车")
			// 	if(findResult) {
			// 		findResult.info = newVal
			// 	}
			// }
			total: {
				handler(newVal) {
					const findResult = this.options.find(x => x.text === "购物车")
						if(findResult) {
							findResult.info = newVal
						}
				},
				immediate: true
			}
			
		},
		
		data() {
			return {
				goods_info: {},
				options: [{
							icon: 'chat',
							text: '客服'
						}, {
							icon: 'shop',
							text: '店铺',
							infoBackgroundColor: '#007aff',
							infoColor: "#f5f5f5"
						}, {
							icon: 'cart',
							text: '购物车',
							info: 0
						}],
						buttonGroup: [{
								text: '加入购物车',
								backgroundColor: 'linear-gradient(90deg, #FFCD1E, #FF8A18)',
								color: '#fff'
							},
							{
								text: '立即购买',
								backgroundColor: 'linear-gradient(90deg, #FE6035, #EF1224)',
								color: '#fff'
							}
						]
			};
		},
		
		onLoad(options) {
			const goods_id = options.goods_id
			console.log(goods_id)
			this.getGoodsDetail(goods_id)
		},
		
		methods: {
			async getGoodsDetail(goods_id) {
				const {data: res} = await uni.$http.get('/api/public/v1/goods/detail', {goods_id: goods_id})
				if(res.meta.status !== 200) return uni.$showMsg()
				
				res.message.goods_introduce = res.message.goods_introduce.replace(/<img /g, '<img style="display:block;" ').replace(/webp/g, 'jpg')
				
				this.goods_info = res.message
			},
			
			preview(i) {
				uni.previewImage({
					current: i,
					// 使用map循环 获得x中的pics_big属性
					urls: this.goods_info.pics.map(x => x.pics_big)
					
				})
			},
			
			onClick(e) {
				console.log(e)
				console.log(e.content.text)
				if (e.content.text === "购物车") {
					uni.switchTab({
						url: '/pages/cart/cart'
					})
				}
			},
			
			...mapMutations('m_cart', ['addToCart']),
			
			buttonClick(e) {
				console.log(e)
				if(e.content.text === '加入购物车') {
					// 组织商品的信息对象
					// { goods_id, goods_name, goods_price, goods_count, goods_small_logo, goods_state }
					const goods = {
						goods_id: this.goods_info.goods_id,
						goods_name: this.goods_info.goods_name,
						goods_price: this.goods_info.goods_price,
						goods_count: 1,
						goods_small_logo: this.goods_info.goods_small_logo,
						goods_state: true
					}
					
					// 调用addToCard方法
					this.addToCart(goods)
					
					uni.$showMsg("加入购物车成功!")
		
				}
			}
			
		}
	}
</script>

<style lang="scss">
	swiper{
		height: 650rpx;
		image {
			width: 100%;
			height: 100%;
		}
	}
	
	.goods-info-box {
		padding: 20rpx;
		padding-right: 0;
		
		.goods-price {
			color: #C00000;
			font-size: 40rpx;
			margin: 25rpx 0;
			font-weight: bold;
		}
		.goods-info-body {
			display: flex;
			justify-content: space-between;
			.left-body {
				font-size: 30rpx;
				margin-right: 25rpx;
			}
			.right-body{
				width: 240rpx;
				font-size: 25rpx;
				display: flex;
				flex-direction: column;
				align-items: center;
				justify-content: center;
				border-left: 4rpx solid #efefef;
				color: gray;
			}
		}
		.goods-yf {
			font-size: 25rpx;
			color: gray;
			margin: 20rpx 0;
		}
	}
	
	.goods_nav {
		position: fixed;
		bottom: 0;
		left: 0;
		width: 100%;
	}
	
	
</style>
